iPad: Japanese retailer Muji has decided to adapt some of their real-world products for iOS, bringing a Google-syncing calendar, a notebook, and an awesome travel assistant to your iPad.

Muji Calendar

Muji Calendar is a simple calendar app that syncs with Google Calendar. It provides all the functionality you'd expect—like scheduling appointments, setting reminders, etc.— but does so with an elegant user interface. It's a really nice, functional calendar app with a cute/annoying rolling suitcase at the bottom. Muji offers it for free in the iTunes App Store.

Muji Notebook

Muji Notebook is the only Muji app that will cost you money—$4, to be exact. It's not just a writing notebook, but also a basic drawing app. You can create multiple notebooks with an endless number of pages and type your notes wherever you want. If you want to add an illustration, you have some basic drawing functionality with multiple colors (see the video above for specifics). If you're not one to draw, you can import JPEGs, PNGs, BMPs, TIFFs, and GIFs into your notebook from either the iPad's file system or by syncing them directly with iTunes. When you're all done, you can send notebook pages via email or save them as images to your iPad.

Muji to Go

Muji to Go is another free app that's designed to be a travel companion. It'll help you identify different plugs, calculate exchange rates and time zone differences, find what you're looking for, and also comes with just a standard calculator. While this is probably the least-useful app Muji provides (unless you're a frequent world traveler), it combines a lot of useful widgets in one place and helps to round out the Muji suite. I feel like this app would be a lot more useful on the iPhone, since you're probably not walking around every place you go with your iPad, but nonetheless it's a helpful addition.

Although the MUJI is correct in saying they're offering iPad and iPhone apps, the only iPhone app is an apparel catalogue that's only available in Japan. MUJI Calendar, Notebook, and To Go are all currently iPad-only. You can snatch up Calendar and To Go free of charge, but Notebook will set you back $4.